1 : <?php
2 : /*--------------------------------------------------------------------------+
3 : This file is part of eStudy.
4 : news/classes/class.NewsCategoryExternalTools.inc.php
5 : - Modulgruppe: News
6 : - Beschreibung: Klasse für die News-Kategorie External Tools.
7 : - Version: 1.1.2.4, 24/01/08
8 : - Autor(en): Corinna Kropf <corinna.kropf@mni.fh-giessen.de>
9 : +---------------------------------------------------------------------------+
10 : This program is free software; you can redistribute it and/or
11 : modify it under the terms of the GNU General Public License
12 : as published by the Free Software Foundation; either version 2
13 : of the License, or any later version.
14 : +---------------------------------------------------------------------------+
15 : This program is distributed in the hope that it will be useful,
16 : but WITHOUT ANY WARRANTY; without even the implied warranty of
17 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 : GNU General Public License for more details.
19 : You should have received a copy of the GNU General Public License
20 : along with this program; if not, write to the Free Software
21 : Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 : +--------------------------------------------------------------------------*/
23 :
24 1 : require_once ("class.newscategory.inc.php");
25 :
26 : /**
27 : * Klasse für die News-Kategorie External Tools.
28 : * @package eStudy.News
29 : * @version 1.1.2.4, 24/01/08
30 : * @author Corinna Kropf <corinna.kropf@mni.fh-giessen.de>
31 : */
32 1 : class NewsCategoryExternalTools extends NewsCategory
33 : {
34 : /**
35 : * Cache Objekt zur Abfrage von Modulinstallationen (Performance Tweak)
36 : * @var array
37 : */
38 : private $installCacheObject;
39 : /**
40 : * Hilfsvariable zum sortierten Anzeigen der Tools
41 : * @var int
42 : */
43 : private $toolID;
44 : /**
45 : * Flag fuer die Anzeige der News-Eintraege
46 : * @var bool
47 : */
48 : private $dark;
49 : /**
50 : * HTML-Template
51 : * @var Template
52 : */
53 : private $toolHeaderTemplate;
54 : /**
55 : * Konstruktor
56 : */
57 : public function __construct($catID, $courses, $categorySettings = null, $cacheObject = null)
58 : {
59 0 : parent::__construct($catID, $courses, $categorySettings);
60 0 : $this->installCacheObject = $cacheObject;
61 0 : $this->toolHeaderTemplate = new Template(PATH_TO_ROOT."news/templates/newsexternaltools_toolheader.html");
62 0 : }
63 : /**
64 : * Überschreibt die Methode der Oberklasse,
65 : * um weitere Initialisierungen vor der Ausgabe zu machen.
66 : * @see NewsCategory
67 : */
68 : public function echoNews($courseID, $usergroup = null)
69 : {
70 0 : $this->toolID = 0;
71 0 : $this->dark = false;
72 0 : parent::echoNews($courseID, $usergroup);
73 0 : }
74 : /**
75 : * Muss angepasst werden, falls Modulgruppen umbenannt werden!
76 : * @see NewsCategory
77 : */
78 : public function isInstalled($courseID)
79 : {
80 0 : return Utilities::isInstalled("externaltools", $courseID, $this->installCacheObject);
81 : }
82 : /**
83 : * @see NewsCategory
84 : */
85 : public function canSelectPeriod() {
86 0 : return false;
87 : }
88 : /**
89 : * @see NewsCategory
90 : */
91 : public function getNewsHeaderTitle($courseID = null, $type = null) {
92 0 : $newsCount = $this->news["count"];
93 0 : if ($newsCount > 1) $title = sprintf( $this->translate->_("%1\$s Registrierungen"), $newsCount);
94 0 : else $title = $this->translate->_("1 Registrierung");
95 0 : $title.= $this->translate->_(" für externe Werkzeuge");
96 :
97 0 : return $title;
98 : }
99 :
100 : public function createQueryCacheObject($from, $to, $lastvisit) {
101 0 : global $db;
102 :
103 0 : $waitingList = array();
104 : $sql = "SELECT et_signuprequests.*, et_tooldata.name "
105 : ."FROM et_signuprequests JOIN et_tooldata ON et_signuprequests.toolID=et_tooldata.ID "
106 0 : ."WHERE status=1 " // waiting...
107 0 : ."ORDER BY name, timestamp";
108 0 : $users = $db->get_results($sql);
109 0 : if ($users == null) {
110 : // Ein leeres Array, damit beim nächsten durchlauf nicht nochmal gesucht wird
111 0 : $this->queryCacheObject["cacheObject"] = array();
112 0 : return false;
113 : }
114 0 : foreach ($users as $user) {
115 0 : $waitingList[$user->courseID][$user->userID]['name'] = $user->courseID;
116 0 : $waitingList[$user->courseID][$user->userID]['userID'] = $user->name;
117 0 : }
118 :
119 0 : $this->queryCacheObject["cacheObject"] = $waitingList;
120 0 : return true;
121 : }
122 :
123 : /**
124 : * @see NewsCategory
125 : */
126 : protected function getNewsByPeriod($courseID, $from, $to, $lastvisit, $usergroup = null)
127 : {
128 :
129 0 : if ($_SESSION["course"] == 0 || $this->queryCacheObject != null) {
130 0 : if ($this->queryCacheObject == null) {
131 0 : if (!$this->createQueryCacheObject($from, $to, $lastvisit))
132 0 : return null;
133 0 : }
134 0 : if ($this->queryCacheObject == null)
135 0 : return null;
136 0 : $cacheObject = $this->queryCacheObject["cacheObject"];
137 0 : if (!array_key_exists($courseID, $cacheObject))
138 0 : return null;
139 0 : $waitingList = $cacheObject[$courseID];
140 0 : $numWaiting = count($waitingList);
141 0 : if ($numWaiting == 0)
142 0 : $this->news = null;
143 : else {
144 0 : foreach($this->news["data"] as $registration) {
145 0 : $this->users[$registration["userID"]] = $registration["userID"];
146 0 : }
147 0 : $this->news["data"] = $numWaiting;
148 0 : $this->news["count"] = $numWaiting;
149 : }
150 0 : return $this->news;
151 : }
152 : // Neue Registrierungen für externe Werkzeuge
153 0 : if (isset($courseID) && isset($lastvisit))
154 0 : {
155 0 : if(!is_numeric($courseID) || !is_numeric($lastvisit) || !is_numeric($usergroup)) return null;
156 :
157 0 : if ($usergroup == ADMIN || ($usergroup == DOZENT && $courseID > 0))
158 0 : {
159 0 : global $db;
160 0 : $this->news = array();
161 :
162 : $sql = "SELECT et_signuprequests.*, et_tooldata.name "
163 : ."FROM et_signuprequests JOIN et_tooldata ON et_signuprequests.toolID=et_tooldata.ID "
164 0 : ."WHERE courseID='".Data::toMysql($courseID)."' "
165 : // ."AND timestamp BETWEEN $lastvisit AND ".time()." "
166 0 : ."AND status=1 " // waiting...
167 0 : ."ORDER BY name, timestamp";
168 0 : $this->news["data"] = $db->get_results($sql, ARRAY_A);
169 0 : $this->news["count"] = $db->num_rows;
170 0 : if ($db->num_rows == 0) $this->news = null;
171 : else
172 : {
173 0 : foreach($this->news["data"] as $registration) {
174 0 : $this->users[$registration["userID"]] = $registration["userID"];
175 0 : }
176 : }
177 0 : }
178 0 : }
179 :
180 0 : return $this->news;
181 : }
182 : /**
183 : * @see NewsCategory
184 : */
185 : protected function echoNewsEntry($entry, $courseID, $usergroup = null)
186 : {
187 0 : if(!isset($this->dark) || !isset($entry) || !isset($courseID) || !isset($this->news["user"])) return;
188 :
189 0 : if ($courseID == 0) {
190 0 : $cellStyle = ($this->dark ? "Dark" : "");
191 0 : if ($this->toolID != $entry["toolID"]) {
192 0 : $toolName = Data::toHTML($entry["name"], false);
193 0 : $externalToolsScript = PATH_TO_ROOT."externaltools/externaltool.admin.php";
194 :
195 0 : $g_Warteliste = $this->translate->_("Warteliste");
196 :
197 0 : eval($this->toolHeaderTemplate->GetTemplate());
198 0 : }
199 0 : foreach($this->news["data"] as $registration) {
200 0 : if($registration["userID"]==$entry["userID"])
201 0 : break;
202 0 : }
203 : echo "<tr>"
204 0 : ."<td class='tableCell".$cellStyle ."'>"
205 0 : .Output::getUsergroupPicture($entry["userID"], STUDENT)
206 0 : ." "
207 0 : .$this->getProfileLink($this->news["user"], $entry["userID"], $courseID)
208 0 : ."</td>"
209 0 : ."</tr>";
210 0 : }
211 0 : }
212 : }
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